Rain, wind and snow possible for some this week

Rain, wind and snow possible for some this week

PORTLAND, Ore. (KOIN) — A major change in the weather pattern is expected to bring wind, rain and even the possibility of snow back to higher elevation parts of the Portland metro area this week.

Strong easterly winds combined with a greater chance of moisture are reason for winter weather concerns this week around Portland. Colder temperatures, stronger winds and lower snow heights are possible early Wednesday night in western Oregon and southwest Washington.


Wind effects around portland

Strong easterly winds will increase the chance of more broken tree branches, downed trees and possible power outages. Winds will begin to increase around noon on Wednesday. This is where some wind gusts may be near 20-30 mph during the afternoon and evening in Portland. Strong and gusty winds are likely to continue through Thursday before increasing to nearly 40 mph on Friday evening. Friday’s winds will also end the possibility of rain and snow around the Pacific Northwest.

East winds will help pull cold temperatures from the other side of the Cascades across the Columbia River Gorge and into the Portland metro area. It is this drop in temperature that will help bring down the snow levels around the Portland metro area by Wednesday night and again Thursday evening.

Who might see the snow?

The mountains are guaranteed to see useful snow this week. Approximately 1 to 2 feet is possible in some Cascades locations by Thursday night. Snow elevations over the mountains will drop to nearly 4,000 feet. Large snow totals and lower snow elevations will be beneficial for Oregon ski resorts.

The cold temperatures around Portland could bring snow levels down to nearly 2,000 feet. That means some stray snow flurries could survive long enough to accumulate on grassy surfaces along the western ridge. This potential snow event is not expected to impact roads or any of the lower elevations around the metro area. Some higher elevation areas in Southwest Washington could also see light dusting on grassy surfaces, but no impact on mobility this week.

Rain is expected on the coast and Portland

Beneficial rain will continue to fall over coastal communities and the majority of the Willamette Valley. Temperatures are expected to drop into the mid-30s overnight this week. This means that rain will be found on top of snow. An inch to an inch and a half of rain is possible from the coast into the Willamette Valley Thursday afternoon.

This latest blast of wet and cold weather is still subject to change. Stay with the most accurate weather team in Portland powered by WeatherRate over the past nine years as this storm continues to develop.

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